1) System should have "Pristine" level of reserves.
2)There should be at least one "Metallic" ring around one of the planets.
3) System's coordinates should be known to EDSM at the time of submission (if they're not, player should add the system to EDSM and provide enough distances to calculate coordinates).
4) Player must provide a screenshot of the system map showing both reserves level as "Pristine" and ring composition as "Metallic". Example: http://i.imgur.com/DY8utM8.png.
NOTE: Please be so kind to provide the screenshots in PNG or JPG, thank you.
5) System should be submitted as a comment in the "Call of the Wild" thread on Frontier forums, also reachable by alternative url http://pristine-metallic.rocks.

Step 2: in EDSM, enter the system where you are now. They will ask you to enter 6 distances to this system. Go to galaxy map, paste each system name in search box, and the map will tell you the distance to that system. Enter the distance in edsm. Click "save distances". EDSM will tell you that the system now has known coordinates.

At the moment I am mining at HIP 51652 (1) and I must say it is Painite heaven. Just just skip other minerals and Painite is my greatest loot. More than the metals. But also quite a pirate density here.